Liquid dispenser



Feb. 9 1926. 1,572,338

v E. wAlTE LIQUID DISPENSER Filed July 28. 1924 5 Sheets-Sheet 1 L. E. WAlTE i LIQUID DISPENSER Filed July 28. 1924 3 Sheets-Sheet 2 u l' I .2 LI-81; *1 -4 9 I' r; jij

63 f 80 iii/...J 22 w 65 .78 6 I' 86 61 67 83 gg fi?, 76541, 2s. l a6 45324' 12 I Z n I 16 INVENTOR O Feb. 9 f, 1926.

L. E. WAITE LIQUID DISPENSER Filed July 28, 1924 3 Sheets-Sheet 5 Lomi Patented Feb. 9, i926.

asians PATENT oFFic LORENZO E. VVAITE, OF TOLEDO, OHIO, ASSIGNOR T0 THE TOLEDO MILLING MACHINE COMPANY, OF TOLEDO, OHIO, A CORPORATION OF DELAW'ARE.

LIQUID DISPENSER.

Application filed July 28, 1924. Serial No. 728,618.

To all whom it may concern.'

lie it known that l, LORENZO lll. YVAITE, a citizen of the United States, residing at rl`oledo, in the county ot Lucas and Stat-e ot' Ohio, have invented new and useful I1nproveniente in Liquid lispensers, o'l" which the following a specil'ioation.

My invention relates to liquid dispensers and itsprincipal object is to dis-pense, at the will of its operator, a single` article for exainple,liquid chocolate, alone; or plural li'quids intimately mixed, tor enau'iple, chocolate and water. Another object is to dispense the articles and the ingredients in measured quantities. another object is to provide improved details in mechanical construction and coinl'iinations thereof whereby the dispensing may be cheaply and eliicientl` effected. Other objects appear here na'ter.

Heier-ring tothe accompanying dra-wings, Fig. l is a` perspective view ot a liquid dispenser en'ibodyinol my invention, Darts being in section; Fig. 2, an enlarged central vertical section of Fig. l, parts be'ng broken away; Fig. 3, an enlarged. portion of Fig. 2, showing the parts in a diilerent position 'from that shown in Eig. 2; Fig. Ll, a top plan view oit the main casing; Fig. 5, a front elevation of my liquid d Spenser with the `cover removed; Fig. 6, a bottom plan view ot a liquidrontaining can assembled with the can puncturing and valve-attach ment; Fig. 7, an enlarged view et' a iragment showing the pars adjacent to the valve Q5; Fig. S, a cross-section on the .line vl'll.l- Vlll on Fig. 7; and 1Eig. l), an enlarg-ged sectional view ot the nozzle 59 and adjacent parts.

On the drawings, l designates a hollow casting of irregular shape, but approximate-ly L-shaped. The liront and rear wall portions ot the casting are connected by the bringe 2 hav'ng a downward and rearunrdljvr inclined opening 2l. The hollow of the cusing above the bridge is marked Li; the hollows at the sides ol the bridge are marked 5; and the hollow below the bridge is marked 6.

rl`he npstanding member oi the casing and the hollow l therein has the shape of a funnel or an inverted bell, the upper end thereoitl inclosing the lower end of the can 4' which stands on the internal lugs 8 projecting inwardly :from the inner tace oit the casting a short distance below the upperV communicating with the inner end oi the opening il through the passage 13. A short distance above the passage lthere is a bore l-l in the lowerside ot the bridge 2, the bore leading troni the opening 8 to the hollow (S. The bracket has the ange lil which lies against the outer face of the casting. to which itl issecured by the screws l5. rllhe lit ot the bracket'to the eastinO is such as to prevent any fluid escaping rroin the recess 12 to the rea-r face or the casting.

rlhe hollow ot the bracket has the tube lG extending from one end to the otherand having its outer or lower end connecter with a supply of 4water under pressure, or with carbonated liquid, or the like. The upper or inner end of the tube is packed oil' from the hollow of the bracket by the annular packing 17. The tube l5 discharges into the inner end of the recess l2. rlhe tube i6 has the branch tube 18 below the casting l.. A valve 19 controls the dispensing ot fluid li'roui the branch tube.

A. sleeve Q0 is screwed'into the open upper end et the opening 3, and its lower end rests upon the annular valve seat Ol supported on a shoulder just below the bore 1li. The portion o the sleeve opposite the inlet of the bore is provided with a circumferential recess Q2, from which a number ot radial openings 23 lead to the interior ot the sleeve. rlhe hollow in the sleeve 2O is provided with the valve-stein 2a having at its lower end the valve 25 closing the valve seat 91 from below. The internal diameter ot the sleeve opposite the radial passages 23 is enlarged so that the liquid passing the valve 25 may pass the valve-stem and have access to the radial passages. lThe hollow in the sleeve `lits the valve-stein for a short distance beyond the recess 22 and then widens out into the larger bore 26. The lower end of the bore 26 has the packinO 27 to seal the bore from the liquid vin the lower end of the sleeve. t coil spring 28 surrounds the Vwilve-stein and has its lower end resting on the packing and its upper end against the inner end oit the plug 29 screwed onto the upper end ot the stein Qd to retain the spring and to adjust its tension or the pressure of the valve l2) on its seat 2l.

'n-W7 the casting below the bena of the L-shape has a large opening 30 directed downwardly and rearwardly. The hollow stationary ineinber 3l ot LAa sleeve or cylindrical valve has its upperend surrounded bythe wall oi' the opening 80 while the lower end eX- tends' into the recess S2 in the inner tace ot the opposite wall of the casing. Slidable within the stationary ineinber 3l and with a close .fit therein is the hollow n'iovable cylindrical ineinber 33 oit the sleeve valve. The plunger or-pistonV Sil tits the inner Yface ot' the sleeve ineinber 33 and has the operating rod or stein 35 extending up tor soin. distance diagonally `beyond the surrounding portion ot the casting l. 'the upper end ot .the inovable sleeve inenibers 3l and 323 are engaged oy the cap '3G screwed into an enlargedportion ot the opening $30. l`he outer end ot the sleeve ineniber 33 has the integral closure 3T provided with a hole tor the stein 35. A bore 38 is inade 'frein the lower face ot the plung r for therod 39 screwed into the inner tace of the casting centrally of the sleeves 3l and 33. A coiled springl l() surrounds the r d 39 and has one end pressing on the inner -liace o1 the casting and its upper end against the upper end of a recess in the bottoni of the plunger and coaxial with the. bore 88. This spring unless prevented holds Athe sleeve 33 againstthe cap 36 and the plunger against the closure 3T as shown in lfigJZ.

The stein 35 projects beyond the outer end oi the cap S43 which is provi(` edwith the packing ring il en which rests the toll z=wer f pressed down bythe screw cap ou cap 3G to adjust the packing to a thiid-tight tit with the stein. is a collar screwed on the stein a little below the outer end ot the cap A coiled spring -i--r surrounds thc stein andpresscs against the closure 3.7 and the collar de. The stein 35 is prevented troni rotating by having a rib slidable in a notch -ftGfin the said closure. The two sleeve inenibers 3l and il?) have a nuniber ot inlet openings 47 and ll-S, respectively, which, when the parts are as shown in F Q, registe with each other and iorin a dir ct assage for fluid in the hollow int the interior of the movable sleeve ineniber 33, these openings being below the plunger The sleeve ineinber 3l `has the outlet opening 49 near its bottoni and the sleeve ne upper tace of the lower portion of ineinber 33 has an outlet opening 50 out of registry with each other when the openings l? and 48 are in registry7 the openings t9 and 50 being in registry when the openings 47 and '-18 are out of registry. The outlet opening 4:9 opens into the iniXing chamber 5l extending longitudinally near the lower face of the casting.

A pipe 52 extends from the bore 14 to the central portion between the ends of the ehainber 5l. A needle or regulating pin 53 is threaded through a plug dscrewed into the lower side of the casting, the parts being arranged so that the point of the needle stands directly opposite the outlet ot the pipe 52 and the length ot' the needle being in the line ot' t-he discharge of Yfluid troni lthe pipe. The needle is locked to the plug by the jam-nut 55. ot the chamber 5l isclosedby the plug 56. rt the outer end of the chamber 5l is a discharge opening 57 which delivers aportion of the dispensed fluid or Vfluids into the annular groove 58 inthe upper tace ot a nozzle or ring 59 screwed in the casting. The nozzle is in axial a'linenient with the discln'ugefopening 57.

(S0 and lll are two operating handles or levers pivoted side by side on the piu (32 held in the cars (33 in the front tace of the casting l above the bend of the L- shape. liach lever rests on the outer end ot the stein 35, so thaty the latter inay be depressed by either lever.

The lever (il has a -loore 64C below the pivot. ln this bore is the slidable dog 65 having its outer end resting on the outer id ot the stein 2-1, this end extending forward beyond the pin 62. T he dog is pressed jf'ieldingly to its outer position by the spring 36 and held at the proper adjustment b v the nuts (S7 screwed on the outer end ot the stein 68 of the dog and bearing against thc shoulder (Si) in the lever (3l. The parts are preterably so arranged that-when the doo'v rests on the plug 29 vthe lever (3l rests on the stein 35. lVhen the lever (Si is pressed down both of said steins down together, but after a certain travel the dog slips back in the bore 64; and ottl troni the top ot the plug 29, permitting the spring 28 to close the valve 25. ot thelever (il to its upper liinit the spring o6 pushes the dog out over the end ot' the plug 2,9, thus setting it :tor another disiensing operation.

The casing is provided with several screw plugs 70 which per`- iit access to the interior for cleaning.

Before the can 7 is assembled with the inachine, it is placed in a traine, to which a combined can opener and valve are attache l. The traine includes a inetal strip which has one portion 7l constructed to lie dianietrically across one end of the can,

The outer endA Upon the lifting Lmaeee,

and tivo portions T2 extending from the ends ot the portion 7l longitudinally along the adjacent sides of the can to the remaining end ot the can, Where the ends of the portions i2 are `bent toward each other to 'form hoolis 73 which overlie the remaining` end of the can. The traine has also a metal strip T-l riveted to the portion Tl opposite the axial center the can and ext-ending at right angles to the said portion 7l. The strip Tlf does not exceed in length the dian'ieter of the can. The portion Tl and the strip Ta have the feet 75 and 75 forming a support for the frame.

The hooks 78 have the holes .7G in which the lugs "7 at the ends of the bridge iot elastic spring metal extend, the bridge crossing the center of the can Where it is' provided With an opening to receive` the valve casing 79 which has a` flange 8O resting on the bridge 78. 'lhis casing has one end open which is pressed against the gasket 8l lying against the end of the can. rllhe elasticity oit the bridge presses the bridge tightly against the gasket, and the gasket against the can. "lhe remaining end ot the valve casing has the opening or valve seat S2 closable bythe valve 83 within the casing 7S). rlhe valve has the stem 8l extendingpast the valve seat SQ to such a distance that, when the can is being placed in dispensing position, the outer end oi the stem engages the bridge 2 so as to stop thc travel of the stem shortly before the can reaches the lugs. The inner end of the valve 83 carries the can piercing point S5. The parts are so proportioned that when the valve 88 is on its seat S2 the point 85 does not enter the can, The can is pierced by driving the point 85 into the can by a bloiv on the stem Sil. The parts are liroportioned so that, when the stem Set rests ou the bridge 2 and the can is on the lugs the Yalve- Vis ott' :from its seat and the point H5 is partially withdrawn 'from the opening made by the point in the can. SG is a spring Vwire seated in a groove in the casing T9 to keep the bridge 7S and the valve casing asseinbled betere their application to the can.

The can is assembled with the puncturing and valve attachment. The can end is punctured by driving the stein 8l inwardly to make the puncture 87. placed on its seat 82 and the can with the at-1 tachnient thereon is seated on the lugs 8, the stem 8l engaging the bridge 2 a certain distance before the can is so seated, the stein being thereby lifted so as to open the valve but not enough to obstruct the puncture 87. The liquid, chocolate, for example, flows from the can down into the casing and fills the measuring valve by flowing through the registering ports 47 and 48. It' chocolate only is to be dispensed the lever 60 is pressed down causing, at first, as before ,explainedthe non-registry of the ports l? and L8 and The valve 83 is the registry of the outlet ports al) and 50, and then the descent of the plunger Sil inthe valve member 33, which expels the liquid into the chamber 5l whence it escapes through the openingl .37 and the nozzle 5S) to he roceived upon a dish oi ice-cream or any other suitable receptacle.` l

In case the chocolate is to be mixed with another fluid, as water, troni the pipe 1G, the lever til is depressed. This causes the chocolate to be delivered as When the lever 60 was pressed down. At the same time the dog 65 carried by the lever (il causes the valve Q5 to be unseated, as before described, and water from the pipe 1b tioivs past the valve and through the pipe 52 into the chamber 5l) where it is injected into the chocolate as it passes tothe nozzle 5i). The water is spread by the needle 53 so as to he well mixed with the chocolate. The mixture is further mixed by the currents set up by the groove `When the lever (il has descended to a predetermined position, the dog slips ott troni the pluT 25, as shown in Fig. 3, to alloiv the valve 25 to close. lVhen thelever is returned to its upper or normal position the dog snaps over the end of the plug, as hereinbefore explained. lVhen the plunger ascends it creates asnction which draivs fluid into the holloun'iemher or ii'ieasu'ring chainher 3l and also away from the nozzle 5S) and back down the passage or chamber 5() so that no fluid drops vfrom the nozzle atteithe plunger begins to ascend. rlhe spring lll returns the plunger 34- and its stem and the valve member 33 to normal positions, as shown in F 2. The springl dat moves the member 33 doivn and permits the independent further movement of the stein 35 for expelling the duid from the member 33. The tension ot spring fle'f can be regulated by adjusting the collar del on the stein 35. i

l, ln a liquid-dispeusing machine, a hollow fluid-containing casing, a mixing rhaniber therein, a measuring chamber havingl an inlet from the hollow ot the casing and an outlet tothe ,mixing chamber, a valve l'or causing the inlet to-be open or closed whenv the outlet is closed or open, respectively, inea-ns for forcing Huid from the measuring chamber into the mixing chaii'iber, means for conveying a second fluid to the mixing chamber, and means for operating the fore# ing` means and for initially operating the valve to close the inlet and open the outlet.

2. In a liquid-dispensing machine, a holloiv fluid-containing casing, a mixing chainloer therein, a measuring chamber having an inlet from the hollow ofthe easing and an outlet tothe mixing chamber, a valve for lll) closing and opening the inlet, means for forcing' fluid from the me: suring `chamber into the mixing chamber, means for conveying a second fluid to themixing chamber, a valve Aoo past which the second fluid flows, and means for operating,r both valves and the forcing means substantially simultaneously.

In a liquid-dispensing machine, a hollow :finid-containing` casing, a'mixing' chamber therein, a valvod measuring chamber having; an inlet from the hollow of" the casing and an outlet to the mixingjchainbei', the inlet being open or closed when the outlet is closed or open, respectively, means for forcing' fluid froinrthe measuring chamber into the mixing' chamber, means for conveying; a second fluid to the 'mixing'- chamber, a valve past which the second fluid-flows, means for opening the valve and for operating the forcing means substantially simul taneously, and means whereby the'valve is released when the forcing means moves la predetermined distance.

4. In a liquid-dispensing` machine, a holloiv fluid-containing; casing, a `mixing' chamber therein, a measuring' chan'iberiliaving;an inlet from the hollow of the casing-and an outlet to the mixing' chamber. a valve for closing' and opening' the inlet, ymeans for forcing fluid from the measuring chamber into the mixingchamber, means for conveying' a second fluid to the mixing' chamber, a valve past Whichiihe second fluid fioivs, a

single means` for operating' the forcing'V means and the valve and a separate means for operating' the forcing means only.

In a liquid-dispensing machine, a holloiv casing to contain a fluid to be dispensed, a mixing chamber therein, means for `delivering a second fluid to the chamber, a fixed sleeve valve member on the 'casing' having inlet and outlet ports for the 'first liquid, a slidable sleeve valve member telescoping the Vfixed member and having' an inlet port ree;-

istering' With the first inlet port when the slidable sleeve is in one position and-an outlet port registering with the first outlet port when the slidable sleeve isin a second posi-V tion, and means 'for expelling' the fluid from the sleeve valve when the inlet ports are closed.

6. In a liquid-dispensing machine, a hollow casing to contain a fluid to be dispensed, a mixing` chamber therein, means for delivering a second `fluid to the chamber, a fixed sleeve valve member in the casing' having' inlet and outlet ports for the first liquid, a slidable sleeve valve member telescoping the fixed member and having an inlet port registering 'ivith therst inlet portivhen the slidable sleeve is in one position andan outlet ooi't reeisteriiic' with the first outlet oo'rt when l h h l the slidalole sleeve is in a` second position, means for expelling; the fluid from the valve when the inlet ports ai'e closed, and means admitting the second fluid tothe 'mixing' chamber, only When theexpelling' lmeans 'is operating'.

7. Ina

liquid-dispensing' machine, aholloiv casing to contain a fiuid to be dispensed, a! mixing chamber therein, means Afor deliveringa second fluid to the chamber, a fixed sleeve valve member in the casing' having inlet and outlet ports Yfor the first liquid, a slidable sleeve valve member telescoping` the fixed mem-bei' and' having,y an inlet port regi'- istei'ing With ther first inlet port when the slidable sleeve is -in one position and an out- .let port registering with the first outlet port When the slidable sleeve is in a secoiidvposition, means for exuelling the fluid from the'sl'eeve valve when the inlet ports are closed, means admitting the second fluid to the mixing chamber, only -when the expelling,` means 1is operating, and means 'for clos-- ing the admitting means at the close oiv the expelling action.

8. In a liqi'iicl-clispeiising machine, a dispensing` chamber for mixed fluids and an outlet nozzle therefor having' an annular grooveon its inner end and surrounding' the outlet to receive a portion of' the fluid and agitatethe saine.

rIna `liquid-dispensing machine, loiv fluid-contaiiiiiigr casing, a mixing' chamber, an outlet therefor, a measuring chamber having' a valved inlet from the holloiv of the casing' and an outlet to thc mixing' cliainber,a plunger arranged to move in one direction to force fluid fron.- the iiieasuriirg` chamber into the mixingv chamber and in the opposite direction to retract fluid from themixing chamber outlet and to suck fluid into the measuringl chamber, and means for closing the inlet valve when the plunger is forcing the fluid and for opening),` the said valve When the vplunger is moving4 in said opposite direction.

lO. In a liquid-dispensing' machine, a liquid supply means` a` measuring' chamber. an outlet passage from the chamberv` and means operating' in one direction to ei-:pel the liquid 'from the measuring' chamber and through the outlet passage and in another a hol- -direction to retract the liquid from the (le-- livery end of the outlet pa. e'e and lo such another measure of fluid vinto the incasurinl,Y chamber.

l1. In lifpiid-dispensing inachine,a fluid supply chamber, a mixing' chamber adapted t0 i'eceivefiuid from the supply chan'iber, an outlet passage from the mixing` chamber. a passagefor a second fluid, opening' into the mixing chamber, and a tapered piii'arranc'ed in the mixing` chamber and in alinement with the outletof the second passage.

12. In a liquid-dispensine' machine, separate elements controlling' the travel of two rliquids, a device actuating one ofthe elements, a second device actuating' simultaneously 'both of the elements, and means whereby the second device is released from `one of the 'said elements ivhen the second device has-ino .cda certain c istance.

llo

ments, a second device actuating simultane Y ously both of the elements, and means wherebyv the second device is released from one of the said elements when the second device has moved a certain distance, the said means comprising a dog vieldingly held in operative position by a spring.

1%. In a liquid-dispensing machine, a liquid-measuring chamber having inlet and outlet openings, a sleeve valve slidable thereon and having, when in one position inl-ets registering with the inlets in the said chamher, and when in another position outlets registering with the outlets in the said chamber, a plunger reeiprocable in the sleeve valve to force liquid from the said chamber, a stem for operating the plunger and worin ing through one end ol' the sleeve valve, a spring on the said end et the sleeve valve'to i'orce the latter to its outlet opening and inlet closing position, and a collar on the stem compressing the spring on the liquid-forcing movement of the plunger, the spring pern1itting the said movement after the sleeve valve has reached the said position.

l5. In a liquid-dispensing machine, a liquid-measuring chamber having inlet and outlet openings, a sleeve valve slidable thereon and having, when in one position inlets registering with the inlets in the said chamn her, and When in another position outlets registering With the outlets inthe said chainber, a plunger reeiprocahle in the sleeve valve to force liquid from the said chamber, a stem for operating the plunger andivorling through one end of the sleeve valve, a spring on the said end ot' the sleeve valve to force the latter to its outlet opening and inlet closing position, a collar on the stem c ompressing the spring on the liquid-forcing movement of the plunger, the spring permitting the said movement a'lter the sleeve valve has reached the said position, and means adjusting the tension of the spring.

In testimony whereof, I hereunto atlix my signature this 25th day of July, 1924i.

LGRENZO E. AITE. 

